re PR middle-end/40304 (Revision 147995 breaks stack unwind)

	PR middle-end/40304
	* config/i386/i386.c (pro_epilogue_adjust_stack): Mark insns
	frame related even if !set_cfa && style < 0.

From-SVN: r148011

gcc/ChangeLog

+2009-05-31  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/40304
+	* config/i386/i386.c (pro_epilogue_adjust_stack): Mark insns
+	frame related even if !set_cfa && style < 0.
+
 2009-05-30  Kai Tietz  <kai.tietz@onevision.com>
 
 	* config/i386/mingw-tls.c: New file.

gcc/config/i386/i386.c

@@ -8026,6 +8026,8 @@ pro_epilogue_adjust_stack (rtx dest, rtx src, rtx offset,
       gcc_assert (style);
       r11 = gen_rtx_REG (DImode, R11_REG);
       insn = emit_insn (gen_rtx_SET (DImode, r11, offset));
+      if (style < 0)
+	RTX_FRAME_RELATED_P (insn) = 1;
       insn = emit_insn (gen_pro_epilogue_adjust_stack_rex64_2 (dest, src, r11,
 							       offset));
     }
@@ -8043,6 +8045,8 @@ pro_epilogue_adjust_stack (rtx dest, rtx src, rtx offset,
       add_reg_note (insn, REG_CFA_ADJUST_CFA, r);
       RTX_FRAME_RELATED_P (insn) = 1;
     }
+  else if (style < 0)
+    RTX_FRAME_RELATED_P (insn) = 1;
 }
 
 /* Find an available register to be used as dynamic realign argument